Speed-regulator for traction-engines.



`-ATEN EErcE.

LOUIS BRANCHE, JR., OF ROSIERE, NEW YORK'.

SPEED-REGULATOR FOR TRACTION-EVNGINES.

SPECIFICATION forming' part of Letters Patent No. 721,005, dated February 17, 1903.

Aligned@ flied october is, 1902. serai No. 127.546. da model.)

To fr/ZZ when@ t may concern/r Be it known that I, LOUIS BRANCHE, Jr., a citizen of the United States, residing at Rosiere, in the county of IedereenY and State of New York, have invented certain new and usefullmprovements in Speed-Regulators for Traction-Engines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. n

This invention relates to a speed-regulator for traction-engines, and has for its object to provide simple and effective means whereby the throttle-valve maybe governed from the platform of the engine to quickly and con-V veniently regulateA the speed of the engine as desired.

With the above and other objects in view, which will readily appear as the nature of the invention is better understood, saidinventon consists in certain novel features of construction and combination and arrangement of part-s, which will be hereinafter fully Ydescribed and claimed, and illustrated in the accompanying drawings, 4in which- Y Figure l is a view in side elevation of a steam-engine governor embodying my invention. Fig. 2 isa top plan view thereof.YY Fig; 3 is a vertical section.

Referring now more particularly to the drawings, 1 represents a centrifugal governor of any desired make or type; 2, the throttlevalve stem; 8, the stationary non-'slidable collar; 4, the sliding collar, and 5 the springarms carrying the usual ball-weights 6.I

Rising from the frame of the governor are rods 7, threaded at their upper ends to receive nuts S, journaled in bearings 9 upon a vertically-adjustable head 10 and provided with gear-teeth 1l to mesh with an intermediate gear 12, journaledin a bearing 18. This gear 12 has spur-teeth to mesh with the teeth 11 of the nuts 8, and beveled teeth to mesh with beveled pinion 14, operated bya rod or shaft l5, designed. to extend-to the platform of vthe engine, the adjacent end of said rod being journaled in a bracket 16, fixed to the head 10.

The upper end of the valvestem 2 is threaded, and engaging the same is an internally-threaded sleeve 17, provided at its lower end with a collar in formk of a nut 18, which collar ts and slides in a'chambered cap-nut 19, engaging ascrew-threaded boss on the sliding collar 4. The sleeve 17 extends up- Wardly through the gear 12 and is provided with a key or spline 2l, adapted to slide in a groove 22 on the interior of said gear, whereby the sleeve is free to slide vertically in the gear andis also connected to rotate therewith.

In operation the governor performs its usual function of checking any dangerous or excess speed; but it is often desired to facilitate or impede the movement of the governor to increase or diminish its seusitiveness and toeftect a quick supply of steam to or cut off of steam from the cyclinder while the throttle is wide open andthe engine is running.V The present invention accomplishes this end, as by the adjustment of the rod 15 the driver or engineer may control thegovernor-valve from the platform of the engine. When this rod is turned in one direction, the head 10 through ther described gearing will travel down on the rods 7 and rotate the sleeve 17 on the threads of the stem 2 until the collar 18 contacts with the base ofthe nut 19 and boss 20, whereupon as the head 10 continues to descend the stem will be forced down to move the governor-valve toward its seat, thereby decreasing or cutting od the supply of steam to the cylinder,V When, on the other hand, the rod 15 isAV turned in the reverse direction, the head 10 will travel up on the rods 7. and the ysleeve 17' will rotate on-the stem 2 until the collar 18 engages the ltop of the nut 19,'w'he'reupon the further upward movement of the head 10 will cause the stem 2 to be drawn upwardly tomove the governorvalve away from its seat','thereby admitting a greater supply of: steam to the cylinder. Hence it will be seen that the supply of steam to or cut od of steam from the cylinder may be readily and quickly controlled.

In the normal operationV of the governor the movement of the collar 4 underthe action of the governor-arms causes the nut 19 to contact with the collar 18 and force the sleeve 17 up or down, the sleeve sliding through the gear 12 during such movement of the collar and transmitting 'corresponding motion to the stem 2, whereby the governor-valve is ICO controlled to let in or cut oif the supply of steam.

From the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction, operation, and advantages of my improved speed-regulator for traction-engines will be readily apparent without requiringa more extended eX- planation.

Various changes in the form, proportion, and the minor details of construction may be resortedl to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire to secu re by Letters Patent, is-

1. In combination, a throttle-valve stem, a centrifugal governor having Weighted governor-arms attached toa sliding collar, a traveling head, a gear carried thereby, a threaded sleeve slidable in the gear and rotatable therewith, means for connecting said sleeve with the sliding collar of the governor, and means for rotating said gear and imparting motion to the head, substantially as set forth.

2. In combination, a threaded throttlevalve stern, a centrifugal governor having weighted governor-arms attached to a sliding collar, threaded supporting-rods, a traveling ysleeve threaded on said stem and adapted to impart movement thereto, and actuating mechanism with which the sleeve has a slidable and rotatable connection, substantially vas set forth. Y

4. In combination, a throttle-valve stem, a sleeve adapted toimpart motion to said stem, and actuating mechanism with which the sleeve has a slidable and rotatable connection, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

LOUIS BRANCHE, JR.

Witnesses:

JAMES RODLE, FRED HOPPLE. 

